Pope Paul VI
Pope Paul VI's encyclical letter 'Humanae Vitae' is a treasured document in the life of the Church, bringing the truth of human sexuality and marriage to the fore at a time when society was caught up in the throes of promscuity and contraception.
Here is an excerpt from this amazing work:
'Another effect that gives cause for alarm is that a man who grows accustomed to the use of contraceptive methods may forget the reverence due to a woman, and, disregarding her physical and emotional equilibrium, reduce her to being a mere instrument for the satisfaction of his own desires, no longer considering her as his partner whom he should surround with care and affection.'
To read the full document, click this link: http://www.vatican.va/holy_father/paul_vi/encyclicals/documents/hf_p-vi_enc_25071968_humanae-vitae_en.html